baber/WOPTO huggingface dataset:
Patent GB-220448-A (GB)
Title: Improvements in machines for cleaning and scraping potatoes and the like
IPC: A47J17/18
Filed: 1923-08-03
Abstract: 220,448. Jones, J. A. Aug. 3, 1923. Cleaning and peeling fruit and vegetables. -In a machine for cleaning and scraping potatoes and the like, of the kind in which a vertical spindle c, covered with roughened or perforated metal hand carrying a disc f of similar material, is rotatable by a. handle i within a receptacle a, the upper bearing for the spindle c is dispensed with and the lower bearing e is of conical form so that a wobbling motion is produced on rotating the spindle.
Patent GB-195905-A (GB)
Title: Improvements in or relating to electrically illuminated signs
IPC: G09F7/08
Filed: 1922-07-20
Abstract: 195,905. Hawtayne, W. C. C., and General Electric Co., Ltd. July 20, 1922. Signs, supporting and securing.-A sign comprises letters or other devices carrying electric lamps, the letters &c. being pivotally mounted and provided with means for locking or holding them in position, so that they can be turned to allow the replacement of lampe &c. from behind. A letter is pivoted upon a vertical rod c and held in position by removable pins g passing through eyes in the letter and the supporting frame d. In a modication, the letters are pivoted upon a horizontal rod.
Patent GB-797781-A (GB)
Title: Improvements in and relating to electric switches operable by successive actuation of an actuating member
IPC: H01H13/60
Filed: 1956-06-27
Abstract: 797,781. Switches held set and freed mechanically. SVENSKA RELAFABRIKEN AKTIEBOLAG. June 27, 1956 [June 28, 1955], No. 19962/56. Class 38 (5). A push-button or relay-operated switch is closed and opened on successive operations of the button by alternate engagement of a spring member, forming an extension of the button, with the contact-carrying member and a latch therefor. In Fig. 1 a leaf-spring 7 engages the top surface of a butt member 6 when a push-button 8 is pressed, and as the butt member 6 is carried on a resilient arm 5 carrying a contact 4 the arm is moved to the closed position, Fig. 3. During this movement the end of the butt member 6 disengages surface 14 of a pivoted latching member 11 which is thus moved by a spring 12 to hold the contacts 3, 4 closed. On subsequent operation of the button 8 the leaf-spring 7 engages the surface 13 of the latch to move it back to the Fig. 1 position and allow the arm 5 to open the contacts 3, 4.
Patent GB-265075-A (GB)
Title: Improvements in or relating to dimming devices for motor or other headlamps or lamps
IPC: F21V14/02
Filed: 1926-08-14
Abstract: 265,075. Rees, D. E. W., and Hutchison, W. E. Aug. 14, 1926. Vehicle lamps; mounting electric lamps in lanterns.- In a vehicle lamp, the electric - lamp bulb-holder B which carries the central part C of the reflector is axially slidable and can be retracted for preventing glare by means of Bowden wire apparatus K in opposition to a spring J so that part of the light passes into the space between the lamp casing H and the main part D of the reflector. Fig. 2 shows an adapted for connecting the Bowden wire to the bulb-holder. Specifications 13208/12 and 185,109 are referred to.
Patent GB-1083818-A (GB)
Title: Method for the manufacture of dimethyl terephthalate
IPC: B01J27/06
Filed: 1965-05-12
Abstract: Dimethyl terephthalate is made by reacting terephthalic acid with MeOH in presence of Mo, its oxide, halide, sulphide or oxyhalide, or a molybdic acid, molybdate, isopolymolybdic acid, isopolymolybdate, heteropolymolybdic acid or heteropolymolybdate.
Patent GB-642601-A (GB)
Title: Lock washer and method of making same
IPC: B21D53/20
Filed: 1947-07-25
Abstract: 642,601. Lock washers. ILLINOIS TOOL WORKS. July 25, 1947, No. 20139. Convention date, Jan. 8, 1941. [Class 89(i)] [Also in Group XXII] A lock washer of the type having twisted teeth 14, has the margin of the hole flanged, turned over, and axially displaced to provide a double thickness 12 that prevents the teeth from being fully flattened on screwing up.
Patent GB-827982-A (GB)
Title: Speed synchronizing means for independent multi-driven rolls
IPC: H02P5/50
Filed: 1956-06-29
Abstract: 827,982. Automatic speed-control systems. FIRESTONE TIRE & RUBBER CO. June 29, 1956 [Aug. 31, 1955], No. 20188/56. Class 38 (4). In an arrangement for synchronizing the speed of two independent rolls over which continuous material is passed and which are driven by motors M1, M2, the potential difference arising between sliders on resistors RSW and RC, Fig. 1, in the circuits of tachometer generators G1, G2 driven by the motors, is indicated on a recorder X and actuates a reversible servomotor S which adjusts simultaneously the slide on RSW to restore a zero P.D. condition and the speed of motor M2. In a modification, Fig. 2, in which the tension in an element being wound on to a roller 5 is maintained constant by maintaining constant the relative speeds of motors 6 and 7 driving shafts 2 and 4, a controller C operated by servomotor S controls the speed of both motors. A further arrangement described with reference to Fig. 3 (not shown), includes a balancing potentiometer between the two circuits and a pair of condensers to smooth out the pen recordings. Calibration of the last-mentioned arrangement is described.
Patent GB-184985-A (GB)
Title: Improvements relating to horse-shoes
IPC: A01L7/04
Filed: 1921-07-28
Abstract: 184,985. Collins, H. July 28, 1921. Renewable calks.-Spikes or studs for horse shoes, of the kind provided with a screw-threaded shank 2 having a central bore 3 to receive a tool for extraction when broken, are made with a wedge-shaped body 1 having a straight biting- edge 6.
Patent GB-1167055-A (GB)
Title: Powder on Foil Capacitor.
IPC: H01G9/00
Filed: 1967-05-02
Abstract: 1,167,055. Electrolytic capacitors. P. R. MALLORY & CO. Inc. 2 May, 1967 [2 May, 1966], No. 20259/67. Heading H1M. Electrolytic capacitors are manufactured by dispensing deposits 64 of powdered film-forming metal on to appendages extending from foil 63 of the same metal, heating to fuse the deposits to the appendages, sintering the deposits, forming a dielectric oxide over the deposits and foil by anodizing, masking the foil, applying a semiconductive coating over the deposits and appendages, e.g. by pyrolysis of manganese nitrate, applying a counter-electrode over the semi-conductive coatings, attaching anode leads to the appendages at points away from the semiconductive coating, attaching cathode leads to the counter-electrodes, and severing the necks of the appendages to form individual capacitors which may subsequently be encapsulated. The powder may be applied as drops of a slurry in a liquid carrier and the appendages may be cupped to hold the deposits. The fusing may be carried out continuously (Fig. 9, not shown). As shown, a length of foil bearing the fused deposits is supported on a frame for batch sintering, but continuous sintering may also be employed.
Patent GB-1322465-A (GB)
Title: Radiation detector
IPC: H01L31/117
Filed: 1971-04-19
Abstract: 1322465 Semi conductor radiation detectors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [26 Jan 1970 4 Dec 1970] 20260/71 Heading H1K A support for a junction-containing (e.g. PIN) semi-conductor radiation detector is secured to the semi-conductor crystal by an external shrink fit (Fig. 1) or an internal expansion fit (Fig. 5). In the co-axial configuration shown in Fig. 1 the annular connective part 4a of the support is heated initially to cause expansion, slid over the co-operating outer surface of the crystal and then recooled to the detector's operating temperature, e.g. liquid nitrogen temperature, to produce an electrically conductive clamping, around the crystal. The space enclosed between the support 4 and the crystal may be evacuated. In the Fig. 5 arrangement a metal tube 45 is shrunk by cooling below the operating temperature of the detector, inserted within the central cavity in the crystal and warmed up to the operating temperature to produce clamping and electrical contact by expansion. Various alternative constructions are described, all of which use external clamping on shrinkage either of a sleeve which directly contacts the crystal as in Fig. 1 or of a shrinkage ring, e.g. of stainless steel, which operates upon a flexible sleeve, e.g. of Al, in contact with the crystal. The co-operating surfaces involved in the clamping may be conical. The clamped surface of the crystal may be initially coated with Au. For a Si or Ge PIN radiation detector the intermediate intrinsic region may be formed by Li compensation.
Patent GB-832275-A (GB)
Title: A fastening for co-planar double-doors
Inventor: GREENWOOD PHILIP
IPC: E05C7/06
Filed: 1957-06-27
Abstract: 832,275. Fasteners for co-planar double doors. YALE & TOWNE MANUFACTURING CO. May 22, 1958 [June 27, 1957], No. 20273/57. Class 44 A fastening, for mounting within the upper free corner of one door d of two hinged or sliding doors d, g, which is actuated automatically by the closing of the other door g to effect securing of the door d in the closed position, comprises a rightangled, triangular, part a with an arcuate bolt b slidable in a correspondingly shaped passage a<SP>2</SP> which is shorter than the bolt b and terminates in the sides of the part a which are mutually at right angles. Cooperating shoulders a<SP>5</SP>, b<SP>1</SP>, in the passage and on the bolt respectively, limit the relative movement of the bolt. The triangular part a is formed of a die-cast block a<SP>1</SP> having an arcuate recess formed in one side face to which is riveted a triangular plate a<SP>3</SP>. The part a is secured within the door d by means of screws c which extend through holes between the mutually perpendicular sides and the third side of the part a. On closing the door g, with the door d closed, the free edge of the door g, or a part h thereon, contacts the lower projecting end of the bolt a<SP>2</SP> and raises it into engagement with a keeper e on, or a hole in, a frame f. When the door g is opened the bolt a<SP>2</SP> falls out of engagement with the keeper e, or frame f, so that the door d can be opened. Alternatively, or in addition, a fastening may be mounted in the bottom corner of the door d.
Patent GB-241341-A (GB)
Title: A new type of spindle for artificial silk
IPC: D01H1/242
Filed: 1924-08-27
Abstract: 241,341. Sandoz, C. Aug. 27,1924. Spindle apparatus.-A spindle 1 for artificial silk is mounted in ball bearings 3, 4 and driven by worm gearing 8, 9 in a closed casing 11 containing oil. Collars 16, 17 are pressed on to tapered portions 21. 22 of the spindle by springs 6, 7 abutting against the parts 18, 20 fixed to the spindle.
Patent GB-246739-A (GB)
Title: Improvements in or relating to luminous signal circuits particularly for railways
IPC: B61L5/18
Filed: 1925-08-12
Abstract: 246,739. Siemens & Halske Akt.- Ges., and Arndt, H. Aug. 12, 1925. Lamp signals particularly for railways have the red danger lamp 5 and green safety lamp 1 in separate circuits, and the danger lamp is extinguished by a short - circuiting switch 7 when the lamp 1 is lit. The switch 7 may be mechanically connected with the switch 4 controlling lamp 1, or may be controlled by a relay in circuit with the lamp 1, or by other means making the condition of lamp 5 dependent on that of lamp 1. As shown, the lamps are supplied with alternating current through transformers 2, 8 and to prevent damage to transformer 8 when the switch 7 is closed, a resistance 10 may be provided or the transformer used may have large leakage.
Patent GB-811349-A (GB)
Title: Improvements in or relating to the drawing of polyamide structures and especially nylon filaments
IPC: D02J1/22
Filed: 1956-06-29
Abstract: Synthetic linear polyamide filaments, films and like products are drawn in two or more stages, each at a temperature below the softening temperature of the polyamide, the first stage being so effected that the ratio of the drawn length to the undrawn length is R1\sB0.4, R1 being determined in accordance with the equation <FORM:0811349/IV (a)/1> where B is the birefringence of the undrawn polyamide material, i.e. the absolute difference in refractive indices along and perpendicular to the axis of the material in unswollen condition. When the birefringence of the polyamide products is 0 to 0.005, R1 may be taken as (4.1\sB0.4)-200B.  The drawing stages are preferably effected at a temperature not higher than about 20 DEG  C. below the melting temperature of the polyamide, but not below the second order transition temperature.  Preferably, also, the first-stage drawing temperature is below the subsequent stage drawing temperatures.  The optimum first-stage drawing temperature varies with the rate at which the products enter the drawing zone, the relation being such that, in general, the lower the feeding speed, the closer the first-stage drawing temperature should be to the second order transition temperature.  Where a temperature gradient exists in the drawing element, the temperature maximum at the region of maximum tension in the products is the selected first-stage drawing temperature.  In an example, freshly formed 140-filament nylon yarn of 4,800 total denier having a birefringence of 0.004 is advanced around a snubbing pin heated to 75 DEG  C. to a set of rolls which give a first-stage draw ratio of 3.3.  The yarn then passes directly to and over a pipe having a surface temperature of 190 DEG C. in 3 wraps, and thence to a second set of rolls which effect a draw ratio of 1.77, giving a total draw ratio of 5.84.  A two-stage drawing process may be carried out without controlling rolls intervening between the stages.
Patent GB-578582-A (GB)
Title: Improvements relating to fluorescent screens for electron bombardment
IPC: H01J29/18
Filed: 1939-07-13
Abstract: 578,582. Cathode-ray tubes. COSSOR, Ltd., A. C., WALKER, F. M., and SHELTON, E. E. July 13, 1939, No. 20389. [Class 39 (i)] A fluorescent screen used in a cathode-ray tube has two superimposed layers of luminescent material ; the one subjected to bombardment by the cathode-ray has an immediate response to give light which excites the second layer, this having a relatively long afterglow. As a result, a cyclically repeated signal can be observed by the persisting illumination, free from interference by haphazard signals not having a simple cyclic relation to the desired signal. The two layers are of differing material so that their light may be separated by a light filter. The " after-glow " layer is of a powder giving red, orange, yellow or green light when excited by blue and may be zinc cadmium sulphide with a suitable activator and of the kind sold under the name " Ep " ; it is applied by using as a binder sodium or potassium silicate. After it has been baked on and superfluous material removed, the " immediate response " layer is applied with the .same binder; this layer may be zinc sulphide with an activator, such as sold under the name " G. 401." This gives the required blue light; the two lights may be viewed through a Wratten filter No. 21, 22 or 23a to eliminate the blue light.
Patent GB-1121805-A (GB)
Title: Means for supporting and locating electric contacts in engagement with printed and like circuitry
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R12/72
Filed: 1966-05-09
Abstract: 1,121,805. Edge connector for printed circuit boards. PRESSAC Ltd. 16 Feb., 1967 [9 May, 1966], No. 20427/66. Heading H2E. An edge connector for a printed circuit board comprises a block 1, Fig. 1, of resilient plastics material, e.g. nylon, having a number of passageways 4 housing contacts 5, and two resilient arms 6 having barbs 7 at their ends which engage steps 8 formed in recesses 9 in the edge of the printed circuit board. The passageways 4 have reduced cross-section parts 4a for receiving the bifurcated contacts 5, Fig. 4, which are held in position by resilient tongues 17 engaging a ledge 15 and protuberances 16 on the block 1. The contacts have flanges 13 which are crimped around the bared ends of conductors to be connected to the circuit board and flanges 14 which are crimped around the insulation of the conductors.
Patent GB-1573170-A (GB)
Title: Halosilyl carbamates and preparation of isocyanates therefrom
IPC: C07F7/18
Filed: 1977-05-16
Abstract: Isocyanates are prepared directly from amines in a facile process which involves the reaction with halosilyl compounds to form novel halosilyl carbamates. The isocyanate may then be derived from the carbamate intermediate by gentle heating. In accordance with one aspect of the invention, isocyanates can be formed which contain a further reactive functional moiety, such as hydroxyl, amino, mercapto, nitro, sulfonamido, amido, carboxyl or the like.
Patent GB-718221-A (GB)
Title: Hydrocarbon distillation process
IPC: C07C7/20
Filed: 1952-08-15
Abstract: Hydrocarbon mixtures having a major proportion of hydrocarbons containing up to six carbon atoms and containing at least 0.01 per cent. by weight of a di-olefine having from three to six carbon atoms are distilled in the presence of one or more organic nitrites of the formula RONO where R is a hydrocarbon group having up to eight carbon atoms and attached to the nitrite group by a saturated aliphatic carbon atom.  The nitrites prevent the formation of polymer in the distilling and ancillary apparatus. Preferred nitrites are iso-amyl and ethyl nitrites.  The nitrites should be present in a quantity from 0.001 to 5 per cent. of the weight of the hydrocarbon mixture present in the distillation unit and may be added with the feed or with the reflux or at any point in the distillation column.  The nitrite chosen should in general have a sufficiently high boiling point to remain primarily in the liquid phase, but nitrite may also be present in the vapour phase.  Before a distillation a relatively concentrated solution of nitrite may be circulated through the apparatus.  In an example 50 parts of iso-amyl nitrite are added with the feed to the de-ethanizer of an installation in which a cracked hydrocarbon mixture is absorbed in a higher boiling hydrocarbon p and the enriched absorption medium treated in a de-ethanizer and de-propanizer.  A portion of the tails from the de-ethanizer are passed to the middle of the de-propanizer, carrying along isoamyl nitrite.  A portion of the tails from the depropanizer containing nitrite, is passed back to the absorber.  The absorber effluent is passed as feed to the middle of the de-ethanizer where nitrite is added continuously to make up for losses and for the portion which leaves the system at the bottom of the de-propanizer.  The use of the nitrites postponed the normal shut-down for cleaning by six months. Other polymerization or oxidation inhibitors, if desired, may be used in conjunction with the nitrites.  Inhibitors specified are N-n-butyl-p-aminophenol, N.N1-disalicylal ethylene diamine, N.N1-disalicylal, 1.2-diamino-propane, 1.1-dimethyl-3-(N-phenyloximino) butyl nitroxide, 2.2-diphenyl-1-picryhydrazyl, p-nitrosodiethylaniline, tetraphenyl - hydrazine, tetranitromethane, nitrobenzene, nitro-toluene, 2.4-diphenylazophenol, ammonia, hydrazine, m-phenylenediamine, phenylhydrazine, hexa-methylenediamine, sodium nitrite and nitro oxides.  Tertiary butyl catechol in conjunction with nitrites gives better results than the nitrites alone.  Tests are described of the comparative inhibitive properties of various nitrites and other inhibitors including various of those specified above and also diethylamine, aniline, mono-ethanolamine, hydroquinone, semicarbazide, benzidine, diphenyl benzidine, phenyl-alphanaphthylamine, phenyl thiocarbizide and pyrogallic acid.
Patent GB-813233-A (GB)
Title: A process for making threads from viscose
IPC: D01F2/10
Filed: 1957-06-28
Abstract: Threads of reduced or regulated elongation are produced by spinning viscose in a bath containing 2-7 per cent by weight of sulphuric acid, 5-20 per cent by weight of sodium sulphate and 2-15 per cent by weight of zinc sulphate at a temperature of at least 20 DEG  C. but below 40 DEG  C. and stretching the threads either in the spinning bath itself or in a subsequent, more dilute, bath which is at the same temperature as, or a higher temperature than, the first bath. When stretching is carried out in a second, more dilute, bath this may be maintained at 50-70 DEG  C.
Patent GB-501499-A (GB)
Title: Improvements in or relating to maintaining liquid level in oil or other liquid containers
IPC: F02M1/00
Filed: 1938-07-12
Abstract: 501,499. Maintaining oil level in oil &c. vessels. BOSCH GES., R. July 12, 1938, No. 20579. Convention date, July 22, 1937. [Class 12 (iii)] [Also in Group XVIII] The oil level 9 in a vessel 3 is maintained constant by supplying additional oil through pipes 33, 34, to make up for that consumed. A rotary pump 28 has a suction 29 located near the desired oil.level and the delivery from a pipe 30 acts on a valve 31 and passes through a throttle 32 and is returned through 34 to the vessel 3. So long as the suction 29 is below the oil level 9 the valve 31 closes the pipe. If, however, the suction 29 is above the oil level the pump delivery pressure falls and the valve 31 opens to permit oil to flow through the pipes 33, 34, to the vessel 9. The invention is shown applied to an oil vessel 3 associated with an injection pump 1 of an internal-combustion engine. The vessel 3 contains an aneroid capsule 12 and a servomotor 15. These parts are of approximately the same size and are symmetrically disposed in the container with reference to the centre of gravity 38 thereof. A second pump 20 has its suction 21 arranged adjacent the centre of gravity 38 and the delivery is led by pipe 35 to the cam shaft 22, by a pipe to a duct 17 to the servomotor, and by a pipe 36 to the oil chambers around the injection pump plunger. The upper extension 37 of the vessel 3 is about the same size as the lower extension housing a diaphragm 5 acted upon by the vacuum in the engine injection pump. Thus in whatever position the vessel 3 is placed the suction pipe 21 is always below the liquid level. In a modification the suction pipe 29 of the pump 29 has branches opening into different parts of the vessel 3.
Patent GB-150170-A (GB)
Title: A locking device for electric and gas fittings
IPC: F21V15/02
Filed: 1919-08-22
Abstract: 150,170. Railing, M. J., Saunders, C. W., and Collings, J. H. Aug. 22, 1919. Guards and protectors; globe-holders.-A locking-device for preventing the theft of lamps or burners in electric and gas lighting fittings comprises a bracket e attached to the base a of the fitting and a lug f pivotally or slidably attached to the bracket. The lug f, when held in the position shown in Fig. 1 by the screw g or a spring bolt, engages with the guard b and prevents its removal. The screw g which has a specially shaped head may be withdrawn by a suitable key to allow the lug to fall into the position shown at Fig. 3, when the guard may be removed. In a modification shown at Fig. 2, the screw or spring bolt i is inserted in the boss h formed on the bracket.
Patent GB-275652-A (GB)
Title: Improvements relating to varnishes, shoe-creams and like preparations
IPC: C09D191/00
Filed: 1925-12-15
Abstract: 275,652. I. G. Farbenindustrie Akt.- Ges., (Assignees of Akt.-Ges. f³r Anilin- Fabrikation). Dec. 23, 1924, [Convention date]. Fats and fatty oils, extracting by solvents.- Fats are dissolved by 1.4 dioxane, to which may be added other solvents, such as mineral oils, turpentine benzine, and solvent naphtha.